WO2010106652A1 - Dispositif d'alimentation électrique sans coupure - Google Patents

Dispositif d'alimentation électrique sans coupure Download PDF

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Publication number
WO2010106652A1
WO2010106652A1 PCT/JP2009/055306 JP2009055306W WO2010106652A1 WO 2010106652 A1 WO2010106652 A1 WO 2010106652A1 JP 2009055306 W JP2009055306 W JP 2009055306W WO 2010106652 A1 WO2010106652 A1 WO 2010106652A1
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WO
WIPO (PCT)
Prior art keywords
power
converter
chopper
phase
sub
Prior art date
Application number
PCT/JP2009/055306
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English (en)
Japanese (ja)
Inventor
カズヒデ エドワルド 佐藤
雅博 木下
山本　融真
達明 安保
Original Assignee
東芝三菱電機産業システム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 東芝三菱電機産業システム株式会社 filed Critical 東芝三菱電機産業システム株式会社
Priority to KR1020117020978A priority Critical patent/KR101302276B1/ko
Priority to PCT/JP2009/055306 priority patent/WO2010106652A1/fr
Priority to JP2011504657A priority patent/JP5436537B2/ja
Priority to CN2009801582219A priority patent/CN102356533A/zh
Priority to US13/202,478 priority patent/US9548630B2/en
Publication of WO2010106652A1 publication Critical patent/WO2010106652A1/fr
Priority to US15/365,405 priority patent/US9775266B2/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/209—Heat transfer by conduction from internal heat source to heat radiating structure
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
    • H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
    • H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode

Definitions

  • This invention relates to an uninterruptible power supply, and more particularly to an uninterruptible power supply provided with a converter, an inverter, and a chopper.
  • an uninterruptible power supply has been widely used as a power supply for stably supplying AC power to an important load such as a computer system.
  • an uninterruptible power supply generally has a converter that converts commercial AC power into DC power, and converts DC power into AC power and supplies it to a load. And a chopper that applies the DC power generated by the converter to the battery when receiving commercial AC power, and supplies the DC power of the battery to the inverter during a power failure of the commercial AC power.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 7-298516
  • JP 7-298516 A JP 7-298516 A
  • the conventional uninterruptible power supply is divided into three units of a converter, an inverter, and a chopper, and a cooler is provided for each unit, so there is a problem that the apparatus becomes large.
  • the main object of the present invention is to provide a small uninterruptible power supply.
  • the uninterruptible power supply When the uninterruptible power supply according to the present invention is supplied with a converter that converts first AC power into DC power, an inverter that converts DC power into second AC power, and the first AC power.
  • a chopper that supplies DC power from the converter to the power storage device and supplies DC power from the power storage device to the inverter when the supply of the first AC power is stopped, and a first cooling that cools the converter and the chopper And a second cooler for cooling the inverter.
  • the converter, the chopper, and the first cooler constitute one unit.
  • a first cooler for cooling the converter and the chopper and a second cooler for cooling the inverter are provided, and the converter, the chopper, and the first cooler are one body.
  • the unit is configured. Therefore, it is possible to reduce the size of the apparatus as compared with the conventional case in which a cooler is provided in each of the converter and the chopper.
  • FIG. 2 is a circuit diagram showing configurations of a PWM converter, a chopper, and a PWM inverter shown in FIG. 1.
  • FIG. 2 is a circuit block diagram schematically showing heat generated by the uninterruptible power supply shown in FIG. 1. It is a figure which shows the method to cool the PWM converter, chopper, and PWM inverter which were shown in FIG. It is a figure which shows the structure of the cooler shown in FIG. It is a circuit block diagram which shows the structure of the uninterruptible power supply by Embodiment 1 of this invention.
  • FIG. 1 is a circuit block diagram showing configurations of a PWM converter, a chopper, and a PWM inverter shown in FIG. 1.
  • FIG. 2 is a circuit block diagram schematically showing heat generated by the uninterruptible power supply shown in FIG. 1. It is a figure which shows the method to cool the PWM converter, chopper, and PWM inverter which were shown in FIG. It is a figure which shows the structure of
  • FIG. 7 is a circuit diagram showing a configuration of a converter / chopper circuit and a PWM inverter shown in FIG. 6.
  • FIG. 7 is a circuit block diagram schematically showing heat generated in the uninterruptible power supply shown in FIG. 6.
  • FIG. 4 is a diagram showing a method for cooling the converter / chopper circuit and the PWM inverter shown in FIG. 3.
  • FIG. 6 is a circuit diagram showing a modification of the first embodiment. It is a circuit block diagram which shows the principal part of the uninterruptible power supply by Embodiment 2 of this invention. It is a figure which shows the method of cooling the power converter circuit shown in FIG.
  • the uninterruptible power supply device includes an input filter 1, a PWM converter 2, a chopper 4, a PWM inverter 4, an output filter 5, and a battery (power storage device) 6.
  • the input filter 1 is provided between the commercial AC power supply 7 and the PWM converter 2.
  • the input filter 1 is a low-pass filter that passes a signal having an AC voltage frequency (for example, 60 Hz) and blocks a signal having a carrier frequency (for example, 10 kHz) generated by the PWM converter 2. Therefore, the AC voltage is transmitted from the commercial AC power supply 7 to the PWM converter 2 via the input filter 1, and the carrier frequency voltage generated by the PWM converter 2 is blocked by the input filter 1. This prevents the commercial AC power source 7 from being affected by the carrier frequency voltage generated by the PWM converter 2.
  • PWM converter 2 includes a plurality of sets of IGBT (Insulated Gate Bipolar Transistor) elements and inverters, and generates a positive voltage and a negative voltage based on an AC voltage applied from commercial AC power supply 7 through input filter 1.
  • IGBT Insulated Gate Bipolar Transistor
  • Each of the plurality of IGBT elements of the PWM converter 2 is PWM-controlled at the carrier frequency, and keeps the positive voltage and the negative voltage constant while keeping the input current in a sine wave and keeping the input power factor at 1.
  • the chopper 3 includes a plurality of sets of IGBT elements and diodes. During normal operation in which an AC voltage is supplied from the commercial AC power supply 7, the chopper 3 supplies DC power from the PWM converter 2 to the battery 6 and AC from the commercial AC power supply 7. At the time of a power failure in which the supply of voltage is stopped, DC power is supplied from the battery 6 to the PWM inverter 4.
  • PWM inverter 4 includes a plurality of sets of IGBT elements and diodes, and generates an AC voltage based on a positive voltage and a negative voltage supplied from PWM converter 2 or chopper 3.
  • Each of the plurality of IGBT elements of the PWM inverter 4 is PWM-controlled at a carrier frequency (for example, 10 kHz) higher than the frequency of the alternating voltage (for example, 60 Hz), and maintains the output voltage at a constant sine wave voltage.
  • the output filter 5 is provided between the PWM inverter 4 and a load (for example, a computer system) 8.
  • the output filter 5 is a low-pass filter that allows a signal having an AC voltage frequency to pass therethrough and blocks a carrier frequency signal generated by the PWM inverter 4. Therefore, the AC voltage is transmitted from the PWM inverter 4 to the load 8 via the output filter 5, and the carrier frequency voltage generated by the PWM inverter 4 is blocked by the output filter 5. This prevents the load 8 from being affected by the carrier frequency voltage generated in the PWM inverter 4.
  • FIG. 2 is a circuit diagram showing the configuration of the PWM converter 2, the chopper 3, and the PWM inverter 4.
  • the PWM converter 2 includes IGBT elements Q1R, Q2R, Q1S, Q2S, Q1T, Q2T, diodes D1R, D2R, D1S, D2S, D1T, D2T, capacitors C1R, C1S, C1T, and fuses F1R, F2R, F1S. , F2S, F1T, F2T.
  • Input nodes N1 to N3 of PWM converter 2 receive a three-phase AC voltage from commercial AC power supply 7 via input filter 1, respectively.
  • the collectors of IGBT elements Q1R, Q1S, Q1T are connected to positive voltage node N4 via fuses F1R, F1S, F1T, respectively, and their emitters are connected to nodes N1-N3, respectively.
  • the collectors of IGBT elements Q2R, Q2S, and Q2T are connected to nodes N1 to N3, respectively, and their emitters are connected to a negative voltage node N5 through fuses F2R, F2S, and F2T, respectively.
  • the diodes D1R, D2R, D1S, D2S, D1T, D2T are connected in antiparallel to the IGBT elements Q1R, Q2R, Q1S, Q2S, Q1T, Q2T, respectively.
  • Capacitors C1R, C1S, C1T have one terminals connected to the collectors of IGBT elements Q1R, Q1S, Q1T, respectively, and the other terminals connected to the emitters of IGBT elements Q2R, Q2S, Q2T, respectively.
  • each of the IGBT elements Q1R, Q2R, Q1S, Q2S, Q1T, and Q2T is turned on / off at a timing according to the phase of the three-phase AC voltage. Be controlled. Thereby, the node N4 is charged to a positive voltage, and the node N5 is charged to a negative voltage. Further, at the time of a power failure in which the supply of the three-phase AC voltage from the commercial AC power supply 7 is stopped, each of the IGBT elements Q1R, Q2R, Q1S, Q2S, Q1T, and Q2T is fixed to the off state.
  • the fuses F1R, F2R, F1S, F2S, F1T, and F2T are cut to protect the circuit. Further, the voltages at nodes N4 and N5 are smoothed and stabilized by capacitors C1R, C1S, and C1T.
  • the chopper 3 includes IGBT elements Q1A, Q2A, Q1B, Q2B, Q1C, Q2C, diodes D1A, D2A, D1B, D2B, D1C, D2C, capacitors C1A, C1B, C1C, and fuses F1A, F2A, F1B, F2B, Includes F1C and F2C.
  • the input / output node N6 of the chopper 3 is connected to the positive electrode of the battery 6, and the node N5 is connected to the negative electrode of the battery 6.
  • the collectors of IGBT elements Q1A, Q1B, Q1C are connected to node N4 via fuses F1A, F1B, F1C, respectively, and their emitters are all connected to node N6.
  • the collectors of IGBT elements Q2A, Q2B, Q2C are all connected to node N6, and their emitters are connected to node N5 via fuses F2A, F2B, F2C, respectively.
  • Diodes D1A, D2A, D1B, D2B, D1C, and D2C are connected in antiparallel to IGBT elements Q1A, Q2A, Q1B, Q2B, Q1C, and Q2C, respectively.
  • Capacitors C1A, C1B, and C1C have one terminals connected to the collectors of IGBT elements Q1A, Q1B, and Q1C, respectively, and the other terminals connected to the emitters of IGBT elements Q2A, Q2B, and Q2C, respectively.
  • each of the IGBT elements Q1A, Q2A, Q1B, Q2B, Q1C, and Q2C is turned on / off at a timing according to the phase of the three-phase AC voltage. Be controlled. Thereby, a minute DC power is supplied to the battery 6 and the battery 6 is charged. Further, at the time of a power failure when the supply of the three-phase AC voltage from the commercial AC power supply 7 is stopped, each of the IGBT elements Q1A, Q2A, Q1B, Q2B, Q1C, Q2C is on / off controlled at a predetermined frequency, and the battery 6 DC power is supplied from the inverter 4 to the inverter 4.
  • the chopper 3 since the chopper 3 needs to supply the same power as the PWM converter 2 to the PWM inverter 4 at the time of a power failure, the current drive capability of the chopper 3 is set to the same level as the PWM converter 2. For this reason, the chopper 3 includes the same number and size of the IGBT elements Q, the diode D, the capacitor C, and the fuse F as the PWM converter 2.
  • the fuses F1A, F2A, F1B, F2B, F1C, and F2C are cut to protect the circuit. Further, the voltages at nodes N4 and N5 are smoothed and stabilized by capacitors C1A, C1B, and C1C.
  • the PWM inverter 4 includes IGBT elements Q1U, Q2U, Q1V, Q2V, Q1W, Q2W, diodes D1U, D2U, D1V, D2V, D1W, D2W, capacitors C1U, C1V, C1W, and fuses F1U, F2U, F1V, F2V. , F1W, F2W.
  • Output nodes N7 to N9 of the PWM inverter 4 are connected to the load 8 via the output filter 5, respectively.
  • the collectors of IGBT elements Q1U, Q1V, and Q1W are connected to node N4 via fuses F1U, F1V, and F1W, respectively, and their emitters are connected to nodes N7 to N9, respectively.
  • the collectors of IGBT elements Q2U, Q2V, Q2W are connected to nodes N7 to N9, respectively, and their emitters are connected to node N5 via fuses F2U, F2V, F2W, respectively.
  • the diodes D1U, D2U, D1V, D2V, D1W, and D2W are connected in reverse parallel to the IGBT elements Q1U, Q2U, Q1V, Q2V, Q1W, and Q2W, respectively.
  • Capacitors C1U, C1V, C1W have one terminals connected to the collectors of IGBT elements Q1U, Q1V, Q1W, respectively, and the other terminals connected to the emitters of IGBT elements Q2U, Q2V, Q2W, respectively.
  • Each of the IGBT elements Q1R, Q2R, Q1S, Q2S, Q1T, and Q2T is ON / OFF controlled at a timing according to the phase of the three-phase AC voltage.
  • a three-phase AC voltage is output to nodes N7 to N8. Therefore, a three-phase AC voltage is supplied to the load 8 during a period in which DC power is supplied from the battery 6 even during a power failure.
  • the PWM converter 2, the chopper 3, and the PWM inverter 4 are fixed to the coolers 11 to 13, respectively. Heat generated in the PWM converter 2, the chopper 3, and the PWM inverter 4 is transmitted to the coolers 11 to 13, respectively. The heat of the coolers 11 to 13 is dissipated into the air. Thereby, the temperature rise of PWM converter 2, chopper 3, and PWM inverter 4 is suppressed.
  • the R-phase part CO-R, the S-phase part CO-S, and the T-phase part CO-T of the PWM converter 2 are sequentially arranged on the surface of the cooler 11.
  • the R-phase portion CO-R is a portion corresponding to the R-phase of the three-phase AC voltage from the commercial AC power supply 7, and includes an element whose symbol ends with R in the PWM converter 2 of FIG.
  • the S-phase part CO-S is a part corresponding to the S-phase of the three-phase AC voltage from the commercial AC power supply 7, and includes an element whose symbol ends with S in the PWM converter 2 of FIG.
  • the T-phase portion CO-R is a portion corresponding to the T-phase of the three-phase AC voltage from the commercial AC power supply 7 and includes an element whose symbol ends with T in the PWM converter 2 of FIG.
  • the A-phase portion CH-A is a portion corresponding to the R-phase of the PWM converter 2 and includes an element having a symbol A at the end of the chopper 3 in FIG.
  • the B-phase portion CH-B is a portion corresponding to the S-phase of the PWM converter 2 and includes an element with a symbol ending in B in the chopper 3 of FIG.
  • the C-phase portion CH-C is a portion corresponding to the T-phase of the PWM converter 2 and includes an element having a C suffix in the chopper 3 of FIG.
  • the U-phase portion IN-U, the V-phase portion IN-V, and the W-phase portion IN-W of the PWM inverter 4 are sequentially arranged on the surface of the cooler 13.
  • the U-phase portion IN-U is a portion corresponding to the U-phase of the three-phase AC voltage supplied to the load 8 and includes an element whose symbol ends with U in the PWM inverter 4 of FIG.
  • the V-phase portion IN-V is a portion corresponding to the V-phase of the three-phase AC voltage supplied to the load 8 and includes an element with a symbol ending in V in the PWM inverter 4 of FIG.
  • the W-phase portion IN-W is a portion corresponding to the W-phase of the three-phase AC voltage supplied to the load 8 and includes an element with a symbol ending in W in the PWM inverter 4 of FIG.
  • the cooler 11 is formed of a metal having high thermal conductivity (for example, aluminum). As shown in FIG. 5, the cooler 11 includes a flat plate portion 11a and a plurality of fins 11b provided on the back surface of the flat plate portion 11a. Including.
  • the PWM converter 2 is fixed to the surface of the flat plate portion 11a in a state where the heat generated by the IGBT element Q and the diode D is conducted to the flat plate portion 11a.
  • the heat of the flat plate portion 11a is dissipated into the air from the surfaces of the plurality of fins 11b.
  • the other coolers 12 and 13 have the same configuration as the cooler 11.
  • the PWM converter 2 and the cooler 11, the chopper 3 and the cooler 12, and the PWM inverter 4 and the cooler 13 each constitute an integral unit.
  • the cooling capacity of the cooler is determined by its size and increases with the size. Although the time when the chopper 3 is actually used after a power failure occurs is short, the same heat as the PWM converter 2 is generated during use, so the cooler 12 having the same size as the cooler 11 of the PWM converter 2 is used for the chopper 3. Has been. The heat generated by the PWM converter 2 and the PWM inverter 4 is substantially the same. Therefore, the coolers 11 to 13 are the same size.
  • the apparatus becomes large. If the three coolers 11 to 13 are used, the apparatus can be made compact by stacking in the vertical direction, for example.
  • the uninterruptible power supply shown in FIGS. 1 to 5 has a problem that the size of the device is still large. Hereinafter, in the embodiment, this problem is solved.
  • FIG. 6 is a circuit block diagram showing the configuration of the uninterruptible power supply according to Embodiment 1 of the present invention, and is a diagram compared with FIG. In FIG. 6, this uninterruptible power supply differs from the uninterruptible power supply of FIG. 1 in that the PWM converter 2 and the chopper 3 are replaced with a converter / chopper circuit 20.
  • the converter / chopper circuit 20 is a combination of the PWM converter 2 and the chopper 3 into one circuit.
  • FIG. 7 is a circuit diagram showing the configuration of the converter / chopper circuit 20 and the PWM inverter 4, which is compared with FIG.
  • the converter / chopper circuit 20 includes an R-phase portion CO-R, an S-phase portion CO-S, and a T-phase portion CO-T of the PWM converter 2 and an A-phase portion CH-A, B-phase portion of the chopper 3.
  • CH-B and C-phase part CH-C are alternately arranged one by one, and capacitors C1R, C1S, C1T and fuses F1R, F2R, F1S, F2S, F1T, F2T of PWM converter 2 are omitted. .
  • the capacitors C1A, C1B, C1C and the fuses F1A, F2A, F1B, F2B, F1C, F2C are shared by the PWM converter 2 and the chopper 3. Is possible. Thereby, the number of parts can be reduced, the size of the apparatus can be reduced, and the cost of the apparatus can be reduced.
  • Capacitor C1R and fuses F1R and F2R are removed from R-phase portion CO-R, the collector of IGBT element Q1R is connected to the collector of IGBT element Q1A, and the emitter of IGBT element Q2R is connected to the emitter of IGBT element Q2A.
  • the capacitor C1S and the fuses F1S and F2S are removed from the S-phase portion CO-S, the collector of the IGBT element Q1S is connected to the collector of the IGBT element Q1B, and the emitter of the IGBT element Q2S is connected to the emitter of the IGBT element Q2B.
  • Capacitor C1T and fuses F1T and F2T are removed from T-phase portion CO-T, the collector of IGBT element Q1T is connected to the collector of IGBT element Q1C, and the emitter of IGBT element Q2T is connected to the emitter of IGBT element Q2C.
  • the on / off control of the IGBT element Q is performed similarly to the circuit of FIG.
  • the A-phase portion CH-A, B-phase portion CH-B, and C-phase portion CH-C of the converter / chopper circuit 20 and the PWM inverter 4 are operated, and the converter / chopper circuit 20 and the PWM inverter 4 are operated.
  • a large amount of heat is generated in each inverter 4. Therefore, the heat generated in the converter / chopper circuit 20 and the heat generated in the PWM inverter 4 are substantially the same during normal operation and during a power failure. Therefore, the cooler for the converter / chopper circuit 20 may be the same as the cooler 13 of the PWM inverter 4.
  • the converter / chopper circuit 20 and the PWM inverter 4 are fixed to the coolers 21 and 13, respectively. Heat generated by the converter / chopper circuit 20 and the PWM inverter 4 is transmitted to the coolers 21 and 13, respectively. The heat of the coolers 21 and 13 is dissipated into the air. Thereby, the temperature rise of converter / chopper circuit 20 and PWM inverter 4 is suppressed.
  • the C-phase part CH-C is sequentially arranged on the surface of the cooler 20.
  • the R-phase portion CO-R is a portion corresponding to the R-phase of the three-phase AC voltage from the commercial AC power supply 7, and includes an element with a suffix R in the PWM converter 2 in FIG.
  • the A-phase portion CH-A is a portion corresponding to the R-phase of the PWM converter 2 and includes an element having a suffix A in the chopper 3 of FIG.
  • the S-phase portion CO-S is a portion corresponding to the S-phase of the three-phase AC voltage from the commercial AC power supply 7 and includes an element whose symbol ends with S in the PWM converter 2 of FIG.
  • the B-phase portion CH-B is a portion corresponding to the S-phase of the PWM converter 2 and includes an element with a symbol ending in B in the chopper 3 of FIG.
  • the T-phase part CO-R is a part corresponding to the T-phase of the three-phase AC voltage from the commercial AC power supply 7, and includes an element with a symbol ending in T in the PWM converter 2 in FIG.
  • the C-phase portion CH-C is a portion corresponding to the T-phase of the PWM converter 2 and includes an element having a C suffix in the chopper 3 of FIG.
  • the U-phase portion IN-U, the V-phase portion IN-V, and the W-phase portion IN-W of the PWM inverter 4 are sequentially arranged on the surface of the cooler 13.
  • the cooler 21 is the same as the cooler 11 of FIG. Converter / chopper circuit 20 and cooler 21, and PWM inverter 4 and cooler 13 constitute an integral unit.
  • Embodiment 1 since the capacitor C, the fuse F, and the cooler 21 are shared by the converter and the chopper, the apparatus can be reduced in size.
  • the converter / chopper circuit 20 is divided into three converter / chopper circuits 20a-20c, and the cooler 21 is divided into three coolers 21a-21c.
  • the converter / chopper circuits 20a to 20c may be fixed to the coolers 21a to 21c, respectively.
  • Converter / chopper circuit 20a includes an R-phase portion CO-R and an A-phase portion CH-A
  • converter / chopper circuit 20b includes an S-phase portion CO-S and a B-phase portion CH-B
  • converter / chopper circuit 20c includes T phase part CO-T and C phase part CH-C are included.
  • Converter / chopper circuit 20a and cooler 21a, converter / chopper circuit 20b and cooler 21b, converter / chopper circuit 20c and cooler 21c each constitute one unit. Even in this modified example, the same effect as in the first embodiment can be obtained.
  • FIG. 11 is a circuit diagram showing a main part of the uninterruptible power supply according to Embodiment 2 of the present invention, and is a diagram contrasted with FIG. In FIG. 11, this uninterruptible power supply is different from the uninterruptible power supply of FIG. 2 in that the PWM converter 2, the chopper 3, and the PWM inverter 4 are replaced with three power conversion circuits 30 to 32. .
  • the R phase part CO-R, the A phase part CH-A, and the U phase part IN-U are combined, and the capacitors C1R, C1U and the fuses F1R, F2R, F1U, F2U are omitted.
  • the S-phase part CO-S, the B-phase part CH-B, and the V-phase part IN-V are combined, and the capacitors C1S and C1V and the fuses F1S, F2S, F1V, and F2V are omitted.
  • the T-phase part CO-T, the C-phase part CH-C, and the W-phase part IN-W are combined, and the capacitors C1T and C1W and the fuses F1T, F2T, F1W, and F2W are omitted.
  • the capacitors C1A, C1B, C1C and the fuses F1A, F2A, F1B, F2B, F1C, F2C are shared by the PWM converter 2 and the chopper 3. Is possible.
  • any one fuse F of the PWM converter 2, the chopper 3, and the PWM inverter 4 is blown, the entire uninterruptible power supply becomes unusable, so that the PWM converter 2, the chopper 3 and the PWM inverter 4
  • the fuses F1A, F2A, F1B, F2B, F1C, and F2C can be shared. Thereby, the number of parts can be reduced, the size of the apparatus can be reduced, and the cost of the apparatus can be reduced.
  • Capacitor C1R and fuses F1R and F2R are removed from R-phase portion CO-R, the collector of IGBT element Q1R is connected to the collector of IGBT element Q1A, and the emitter of IGBT element Q2R is connected to the emitter of IGBT element Q2A.
  • Capacitor C1U and fuses F1U and F2U are removed from U-phase portion IN-U, the collector of IGBT element Q1U is connected to the collector of IGBT element Q1A, and the emitter of IGBT element Q2U is connected to the emitter of IGBT element Q2A.
  • capacitor C1S and the fuses F1S and F2S are removed from the S-phase portion CO-S, the collector of the IGBT element Q1S is connected to the collector of the IGBT element Q1B, and the emitter of the IGBT element Q2S is connected to the emitter of the IGBT element Q2B.
  • Capacitor C1V and fuses F1V and F2V are removed from V-phase portion IN-V, the collector of IGBT element Q1V is connected to the collector of IGBT element Q1B, and the emitter of IGBT element Q2V is connected to the emitter of IGBT element Q2B.
  • the capacitor C1T and the fuses F1T and F2T are removed from the T-phase portion CO-T, the collector of the IGBT element Q1T is connected to the collector of the IGBT element Q1C, and the emitter of the IGBT element Q2T is connected to the emitter of the IGBT element Q2C.
  • Capacitor C1W and fuses F1W and F2W are removed from W-phase portion IN-W, the collector of IGBT element Q1W is connected to the collector of IGBT element Q1C, and the emitter of IGBT element Q2W is connected to the emitter of IGBT element Q2C.
  • the on / off control of the IGBT element Q is performed similarly to the circuit of FIG.
  • the power conversion circuits 30 to 32 when the power conversion circuits 30 to 32 are operated, heat is generated in the IGBT element Q and the diode D.
  • the R-phase portion CO-R and U-phase portion IN-U of the power conversion circuit 30 and the S-phase portion CO-S and V-phase of the power conversion circuit 31 are used.
  • the part IN-V, the T-phase part CO-T and the W-phase part IN-W of the power conversion circuit 32 are operated, and a large amount of heat is generated in each of the power conversion circuits 30 to 32.
  • the A phase portion CH-A and the U phase portion IN-U of the power conversion circuit 30, the B phase portion CH-B and the V phase portion IN-V of the power conversion circuit 31, The C phase portion CH-C and the W phase portion IN-W of the power conversion circuit 32 are operated, and large heat is generated in each of the power conversion circuits 30 to 32. Therefore, the heat generated in each of the power conversion circuits 30 to 32 is substantially the same during normal operation and during a power failure. Since the number of IGBT elements Q driven by each of power conversion circuits 30 to 32 is 2/3 times the number of IGBT elements Q driven by PWM inverter 4, each of power conversion circuits 30 to 32 The generated heat is 2/3 times the heat generated by the PWM inverter 4. Therefore, the size of each cooler of the power conversion circuits 30 to 32 is 2/3 times the size of the cooler 13 of the PWM inverter 4.
  • the power conversion circuits 30 to 32 are fixed to the coolers 33 to 35, respectively.
  • the heat generated in the power conversion circuits 30 to 32 is transmitted to the coolers 33 to 35, respectively.
  • the heat of the coolers 33 to 35 is dissipated into the air. As a result, the temperature rise of the power conversion circuits 30 to 32 is suppressed.
  • the R-phase part CO-R, the A-phase part CH-A, and the U-phase part IN-U of the power conversion circuit 30 are sequentially arranged on the surface of the cooler 33.
  • the R-phase portion CO-R is a portion corresponding to the R-phase of the three-phase AC voltage from the commercial AC power supply 7, and includes an element with a symbol ending in R in the power conversion circuit 30 in FIG.
  • the A-phase portion CH-A is a portion corresponding to the R-phase of the PWM converter 2 and includes an element having a suffix A in the power conversion circuit 30 in FIG.
  • the U-phase portion IN-U is a portion corresponding to the U-phase of the three-phase AC voltage supplied to the load 8 and includes an element whose symbol ends with U in the power conversion circuit 30 in FIG.
  • the S-phase portion CO-S, the B-phase portion CH-B, and the V-phase portion IN-V of the power conversion circuit 31 are sequentially arranged on the surface of the cooler 34.
  • the S-phase portion CO-S is a portion corresponding to the S-phase of the three-phase AC voltage from the commercial AC power supply 7, and includes an element whose symbol ends with S in the power conversion circuit 31 of FIG.
  • the B-phase portion CH-B is a portion corresponding to the S-phase of the PWM converter 2 and includes an element with a suffix “B” in the power conversion circuit 31 of FIG.
  • the V-phase portion IN-V is a portion corresponding to the V-phase of the three-phase AC voltage supplied to the load 8 and includes an element with a symbol ending in V in the power conversion circuit 31 of FIG.
  • the T-phase portion CO-T, the C-phase portion CH-C, and the W-phase portion IN-W of the power conversion circuit 32 are sequentially arranged on the surface of the cooler 35.
  • the T-phase portion CO-T is a portion corresponding to the T-phase of the three-phase AC voltage from the commercial AC power supply 7, and includes an element whose symbol ends with T in the power conversion circuit 32 of FIG.
  • the C-phase portion CH-C is a portion corresponding to the T-phase of the PWM converter 2 and includes an element whose code ends with C in the power conversion circuit 32 of FIG.
  • the W-phase portion IN-W is a portion corresponding to the W-phase of the three-phase AC voltage supplied to the load 8 and includes an element with a symbol ending in W in the power conversion circuit 32 of FIG.
  • the sizes of the coolers 33 to 35 are 2/3 times the sizes of the coolers 11 to 13 shown in FIGS. 4 (a) to (c), respectively.
  • the power conversion circuit 30 and the cooler 33, the power conversion circuit 31 and the cooler 34, and the power conversion circuit 32 and the cooler 35 constitute an integral unit.
  • the converter, the chopper, and the inverter are combined for each phase to form the three power conversion circuits 30 to 32, and the coolers 33 to 35 are provided in the power conversion circuits 30 to 32, respectively.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Inverter Devices (AREA)
  • Rectifiers (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Stand-By Power Supply Arrangements (AREA)

Abstract

L'invention porte sur un dispositif d'alimentation électrique sans coupure qui comprend un dispositif de refroidissement (21) pour refroidir un circuit convertisseur/hacheur (20), et un dispositif de refroidissement (13) pour refroidir un onduleur à modulation d'impulsions en durée (PWM) (4). Le circuit convertisseur/hacheur (20) et le dispositif de refroidissement (21) composent une seule unité. En conséquence, la taille du dispositif d'alimentation électrique sans coupure est petite, par comparaison aux dispositifs classiques dans lesquels des dispositifs de refroidissement (11, 12) sont agencés pour le convertisseur PWM (2) et le hacheur (3), respectivement.
PCT/JP2009/055306 2009-03-18 2009-03-18 Dispositif d'alimentation électrique sans coupure WO2010106652A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
KR1020117020978A KR101302276B1 (ko) 2009-03-18 2009-03-18 무정전 전원 장치
PCT/JP2009/055306 WO2010106652A1 (fr) 2009-03-18 2009-03-18 Dispositif d'alimentation électrique sans coupure
JP2011504657A JP5436537B2 (ja) 2009-03-18 2009-03-18 無停電電源装置
CN2009801582219A CN102356533A (zh) 2009-03-18 2009-03-18 不间断供电电源装置
US13/202,478 US9548630B2 (en) 2009-03-18 2009-03-18 Compact uninterruptible power supply apparatus with cooling units
US15/365,405 US9775266B2 (en) 2009-03-18 2016-11-30 Modular uninterruptible power supply apparatus

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PCT/JP2009/055306 WO2010106652A1 (fr) 2009-03-18 2009-03-18 Dispositif d'alimentation électrique sans coupure

Related Child Applications (2)

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US13/202,478 A-371-Of-International US9548630B2 (en) 2009-03-18 2009-03-18 Compact uninterruptible power supply apparatus with cooling units
US15/365,405 Continuation US9775266B2 (en) 2009-03-18 2016-11-30 Modular uninterruptible power supply apparatus

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WO2010106652A1 true WO2010106652A1 (fr) 2010-09-23

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JP (1) JP5436537B2 (fr)
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015170377A1 (fr) * 2014-05-07 2015-11-12 株式会社日立製作所 Dispositif de conversion de puissance et procédé de conversion de puissance pour dispositif de conversion de puissance
JP2017099063A (ja) * 2015-11-18 2017-06-01 富士電機株式会社 電力変換装置
CN107105597A (zh) * 2016-02-22 2017-08-29 富士电机株式会社 电源装置
JP2019054581A (ja) * 2017-09-13 2019-04-04 東芝三菱電機産業システム株式会社 電力変換装置
WO2019180784A1 (fr) * 2018-03-19 2019-09-26 東芝三菱電機産業システム株式会社 Dispositif de conversion de puissance
JP2019170083A (ja) * 2018-03-23 2019-10-03 株式会社日立製作所 電力変換装置
JP7477940B1 (ja) 2022-11-08 2024-05-02 株式会社Tmeic 無停電電源装置

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101136404B1 (ko) * 2009-02-20 2012-04-18 도시바 미쓰비시덴키 산교시스템 가부시키가이샤 전력 변환 장치
US9154000B2 (en) 2009-09-25 2015-10-06 Toshiba Mitsubishi-Electric Industrial Systems Corporation Uninterruptible power supply apparatus including a control circuit that executes a first mode when supply of a first AC electric power from a commercial AC power supply is resumed at a time of discharge end
US8964431B2 (en) 2009-09-30 2015-02-24 Toshiba Mitsubishi-Electric Industrial Systems Corporation Power conversion system
CN103715751A (zh) * 2014-01-08 2014-04-09 雷小燕 一种可转换二合一移动电源
CN104901410A (zh) * 2014-03-04 2015-09-09 伊顿公司 一种ups电路
CN107318271B (zh) * 2015-03-04 2019-11-08 株式会社日立制作所 电力变换单元以及电力变换装置
JPWO2018092239A1 (ja) * 2016-11-17 2019-10-10 東芝三菱電機産業システム株式会社 電力変換装置
US10587203B2 (en) * 2016-11-17 2020-03-10 Toshiba Mitsubishi-Electric Industrial Systems Corporation Power conversion apparatus
WO2018211334A1 (fr) 2017-05-18 2018-11-22 Nvent Services Gmbh Convertisseur de puissance universel
JP6706395B2 (ja) * 2017-10-25 2020-06-03 東芝三菱電機産業システム株式会社 電力変換装置
CN107919804B (zh) * 2017-12-20 2024-04-30 西安中车永电电气有限公司 一种内燃机车整流斩波相功率模块
CN107888083B (zh) * 2017-12-20 2024-03-26 西安中车永电电气有限公司 一种内燃机车交流传动系统主电路功率单元
FR3096191B1 (fr) * 2019-05-13 2021-06-04 Alstom Transp Tech Dispositif d’alimentation en énergie électrique, chaîne de traction et véhicule électrique associés
KR20220106502A (ko) * 2021-01-22 2022-07-29 엘에스일렉트릭(주) 무정전 전원 공급 모듈

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5928291U (ja) * 1982-08-16 1984-02-22 株式会社明電舎 電力変換装置
JPH07298516A (ja) * 1994-04-22 1995-11-10 Yuasa Corp 無停電電源装置
JPH0833336A (ja) * 1994-07-20 1996-02-02 Hitachi Ltd 電力変換装置
JPH08154374A (ja) * 1994-11-25 1996-06-11 Hitachi Ltd 電力変換装置の保護装置
JP2001352763A (ja) * 2000-04-03 2001-12-21 Sanken Electric Co Ltd 電力変換装置
JP2003259657A (ja) * 2002-03-06 2003-09-12 Fuji Electric Co Ltd 電力変換装置

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5928291A (ja) * 1982-08-06 1984-02-14 Nec Corp 磁気バブルメモリ用パツケ−ジの製造方法
US4709318A (en) * 1986-10-22 1987-11-24 Liebert Corporation UPS apparatus with control protocols
US5027264A (en) * 1989-09-29 1991-06-25 Wisconsin Alumni Research Foundation Power conversion apparatus for DC/DC conversion using dual active bridges
US5381330A (en) * 1993-09-08 1995-01-10 Grundl & Hoffmann Half-bridge arrangement for switching electrical power
US5625548A (en) * 1994-08-10 1997-04-29 American Superconductor Corporation Control circuit for cryogenically-cooled power electronics employed in power conversion systems
JPH09130995A (ja) * 1995-10-31 1997-05-16 Toshiba Corp 無停電電源装置
US5870286A (en) * 1997-08-20 1999-02-09 International Business Machines Corporation Heat sink assembly for cooling electronic modules
US5945746A (en) * 1997-08-21 1999-08-31 Tracewell Power, Inc. Power supply and power supply/backplane assembly and system
JP3447543B2 (ja) * 1998-02-02 2003-09-16 東芝トランスポートエンジニアリング株式会社 電力変換装置
JP2000166119A (ja) 1998-11-25 2000-06-16 Mitsubishi Electric Corp 無停電電源装置
JP3606780B2 (ja) * 1999-12-24 2005-01-05 東芝三菱電機産業システム株式会社 無停電電源装置
TW513850B (en) 2000-04-03 2002-12-11 Shan Ken Oenki Kabushiki Kaish Electric power converting apparatus
US6972957B2 (en) * 2002-01-16 2005-12-06 Rockwell Automation Technologies, Inc. Modular power converter having fluid cooled support
KR100500244B1 (ko) * 2003-02-07 2005-07-11 삼성전자주식회사 전원공급장치 및 그 제어방법
JP2006074965A (ja) * 2004-09-06 2006-03-16 Honda Motor Co Ltd 電源装置
JP4410670B2 (ja) * 2004-12-10 2010-02-03 山洋電気株式会社 無停電電源装置
CA2722263C (fr) 2009-03-05 2015-04-21 Toshiba Mitsubishi-Electric Industrial Systems Corporation Systeme d'alimentation sans coupure
JP5461529B2 (ja) 2009-04-17 2014-04-02 東芝三菱電機産業システム株式会社 無停電電源システム
US9154000B2 (en) 2009-09-25 2015-10-06 Toshiba Mitsubishi-Electric Industrial Systems Corporation Uninterruptible power supply apparatus including a control circuit that executes a first mode when supply of a first AC electric power from a commercial AC power supply is resumed at a time of discharge end
US8964431B2 (en) 2009-09-30 2015-02-24 Toshiba Mitsubishi-Electric Industrial Systems Corporation Power conversion system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5928291U (ja) * 1982-08-16 1984-02-22 株式会社明電舎 電力変換装置
JPH07298516A (ja) * 1994-04-22 1995-11-10 Yuasa Corp 無停電電源装置
JPH0833336A (ja) * 1994-07-20 1996-02-02 Hitachi Ltd 電力変換装置
JPH08154374A (ja) * 1994-11-25 1996-06-11 Hitachi Ltd 電力変換装置の保護装置
JP2001352763A (ja) * 2000-04-03 2001-12-21 Sanken Electric Co Ltd 電力変換装置
JP2003259657A (ja) * 2002-03-06 2003-09-12 Fuji Electric Co Ltd 電力変換装置

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015170377A1 (fr) * 2014-05-07 2015-11-12 株式会社日立製作所 Dispositif de conversion de puissance et procédé de conversion de puissance pour dispositif de conversion de puissance
JPWO2015170377A1 (ja) * 2014-05-07 2017-04-20 株式会社日立製作所 電力変換装置および電力変換装置の電力変換方法
US10008953B2 (en) 2014-05-07 2018-06-26 Hitachi, Ltd. Power conversion device and power conversion method for power conversion device
JP2017099063A (ja) * 2015-11-18 2017-06-01 富士電機株式会社 電力変換装置
CN107105597A (zh) * 2016-02-22 2017-08-29 富士电机株式会社 电源装置
JP2017153190A (ja) * 2016-02-22 2017-08-31 富士電機株式会社 電源装置
JP2019054581A (ja) * 2017-09-13 2019-04-04 東芝三菱電機産業システム株式会社 電力変換装置
WO2019180784A1 (fr) * 2018-03-19 2019-09-26 東芝三菱電機産業システム株式会社 Dispositif de conversion de puissance
JPWO2019180784A1 (ja) * 2018-03-19 2020-09-03 東芝三菱電機産業システム株式会社 電力変換装置
CN111869042A (zh) * 2018-03-19 2020-10-30 东芝三菱电机产业系统株式会社 电力转换装置
CN111869042B (zh) * 2018-03-19 2022-08-02 东芝三菱电机产业系统株式会社 电力转换装置
JP2019170083A (ja) * 2018-03-23 2019-10-03 株式会社日立製作所 電力変換装置
JP7477940B1 (ja) 2022-11-08 2024-05-02 株式会社Tmeic 無停電電源装置
WO2024100766A1 (fr) * 2022-11-08 2024-05-16 株式会社Tmeic Dispositif d'alimentation sans interruption

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CN102356533A (zh) 2012-02-15
US9775266B2 (en) 2017-09-26
US9548630B2 (en) 2017-01-17
JP5436537B2 (ja) 2014-03-05
JPWO2010106652A1 (ja) 2012-09-20
KR101302276B1 (ko) 2013-09-02
US20110299307A1 (en) 2011-12-08
KR20110114716A (ko) 2011-10-19
US20170086329A1 (en) 2017-03-23

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